Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of passive infrared detector, is intended to solve existing passive infrared detector installation process complexity, the problem of influence stability.
The embodiment of the invention is achieved in that a kind of passive infrared detector, comprises body, is inserted in and the rack tube of clamping and be assembled into the face-piece of one with described rack tube for described body.
Another purpose of the embodiment of the invention is to provide a kind of safety-protection system, and described safety-protection system adopts above-mentioned passive infrared detector.
Another purpose of the embodiment of the invention is to provide a kind of method that above-mentioned passive infrared detector is installed, and said method comprising the steps of:
On body of wall, bore the mounting hole of a containment bracket tube;
Described rack tube is installed on described mounting hole;
Connect and body is inserted in behind the lead and is connected in described rack tube;
Cover face-piece.
The embodiment of the invention is bored the mounting hole of a containment bracket tube prior to body of wall, then rack tube is installed on this mounting hole, connect and body is inserted in behind the lead and is connected in this rack tube, cover face-piece then, can finish installation, installation process is easy, avoids complete machine is taken apart, thereby does not influence the stability of detector.
Description of drawings
Fig. 1 is the front elevation of the passive infrared detector that provides of the embodiment of the invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is Fig. 2 F-F sectional view;
Fig. 4 is the explosive view of the passive infrared detector that provides of the embodiment of the invention;
Fig. 5 installs bore state figure in the passive infrared detector process;
Fig. 6 installs fixed support tube constitutional diagram in the passive infrared detector process;
Fig. 7 installs wiring state figure in the passive infrared detector process;
Fig. 8 is that body is inserted in the rack tube constitutional diagram in the installation passive infrared detector process;
Fig. 9 installs shell constitutional diagram above the passive infrared detector process middle cover;
Figure 10 is that passive infrared detector installs the back constitutional diagram;
Figure 11 changes in the Fresnel Lenses process to take off the face-piece constitutional diagram;
Figure 12 changes in the Fresnel Lenses process to take off the Fresnel Lenses constitutional diagram;
Figure 13 changes shell constitutional diagram above the Fresnel Lenses process middle cover.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention is bored the mounting hole of a containment bracket tube prior to body of wall, then rack tube is installed on this mounting hole, connects body to be inserted in behind the lead and to be connected in this rack tube, cover face-piece then, can finish installation, installation process is easy, and does not influence the stability of detector.
The passive infrared detector that the embodiment of the invention provides comprises body, is inserted in and the rack tube of clamping and be assembled into the face-piece of one with described rack tube for described body.
The safety-protection system that the embodiment of the invention provides adopts above-mentioned passive infrared detector.
The method of the above-mentioned passive infrared detector of installation that the embodiment of the invention provides may further comprise the steps:
On body of wall, bore the mounting hole of a containment bracket tube;
Described rack tube is installed on described mounting hole;
Connect and body is inserted in behind the lead and is connected in described rack tube;
Cover face-piece.
Below in conjunction with specific embodiment realization of the present invention is described in detail.
Shown in Fig. 1~13, the passive infrared detector that the embodiment of the invention provides comprises body 1, is inserted in and the rack tube 2 of clamping and be assembled into the face-piece 3 of one with this rack tube 2 for this body 1.When this passive infrared detector is installed, bore the mounting hole 40 of a containment bracket tube 2 prior to body of wall 4, then rack tube 2 is installed on this mounting hole 40, make body 1 be inserted in and be connected in this rack tube 2 after connecting lead 5, cover face-piece 3 then, can finish installation, installation process is easy, avoid complete machine is taken apart, thereby do not influence the stability of detector.
In the embodiment of the invention, the middle part of rack tube 2 is provided with elasticity arm 21, and this elasticity arm 21 has a link 22 and an aduncate free end 23 that is connected in the sidewall of rack tube 2.By elasticity arm 21 clamping bodies 1, body 1 will be more firm, and the stability of detector is higher.
The lateral wall of above-mentioned body 1 is provided with a circle trip 11, and correspondingly, the madial wall of elasticity arm 21 is provided with and this trip 11 snap ring 24 of clamping mutually.Body 1 is inserted in rack tube 2, and trip 11 fastens with snap ring 24, stops body 1 to skid off from rack tube 2.Cross section with trip 11 is shaped to right-angled trapezium simultaneously, and makes the afterbody of its inclined-plane towards body 1, so that trip 11 imports.
In embodiments of the present invention, elasticity arm 21 is two, is symmetrically distributed on rack tube 2.After body 1 was inserted in rack tube 2, the power that elasticity arm 21 acts on body 1 was more even, and the axis of body 1 will overlap with the axis of rack tube 2 automatically, installed for follow-up Fresnel Lenses and provided convenience.
In addition, the outer end of rack tube 2 be one with the assembling table top 25 of body of wall 4 Joints, the edge of this assembling table top 25 is provided with the screens 26 with face-piece 3 clampings, these face-piece 3 middle parts have the blocking part 31 in order to keep out Fresnel Lenses support 6.This snap fit is installed face-piece 3, easy operating.After face- piece 3 and 25 clampings of assembling table top, its blocking part 31 props up Fresnel Lenses support 6 immediately, has located Fresnel Lenses 7 simultaneously.Usually pass assembling table top 25 by screw 41 rack tube 2 is fixed in body of wall 4.
For being convenient for changing Fresnel Lenses 7, establish arc bump 27 in the edge of assembling table top 25, make and form the slit 80 of inserting between this arc bump 27 and the face-piece 3 for screwdriver 8.Be as the criterion and determine position Fresnel Lenses 7, the bottom of aforementioned Fresnel Lenses support 6 is provided with the protruding button 61 as the fool proof sign.
The embodiment of the invention is bored the mounting hole of a containment bracket tube prior to body of wall, then rack tube is installed on this mounting hole, connect and body is inserted in behind the lead and is connected in this rack tube, cover face-piece then, can finish installation, installation process is easy, avoids complete machine is taken apart, thereby does not influence the stability of detector.Simultaneously, establish elasticity arm in the middle part of rack tube, this elasticity arm has a link and an aduncate free end that is connected in the sidewall of rack tube, and by elasticity arm clamping body, body will be more firm, and the stability of detector is also higher.In addition, keep out the Fresnel Lenses support by face-piece, when changing Fresnel Lenses, take off the face-piece replacing and get final product, efficient is high.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.